Automatic opening and closing device static and dynamic joint set

Abstract

The utility model discloses a kind of static contact point groups of automatic switch, belong to railway control equipment technical field, including dynamic contact point group, static contact point group being symmetrically arranged in the side of dynamic contact point group;Static contact point group includes static contact point mounting seat, contact piece group, contact piece group includes inner group static contact point piece, outer group reinforcing support piece, inner group static contact point piece includes inner upper group static contact point piece, inner lower group static contact point piece, outer group reinforcing support piece includes outer upper group reinforcing support piece, outer lower group reinforcing support piece, inner group static contact point piece, outer group reinforcing support piece are integrally formed.The utility model has the advantages that: the contact piece group on static contact point group uses two layers of contact piece, lower layer contact piece spark erosion aging in instant circuit connection, circuit is connected, continue to make dynamic contact point ring press into upper layer contact piece, upper layer contact piece will not form pull arc phenomenon, two layers of contact piece work simultaneously circuit connection, compared with existing single layer static contact piece, improve safety, reduce circuit hidden danger and risk.

Description

Technical Field

[0001] This utility model relates to the field of railway control equipment technology, specifically to an automatic gate opener and closeer dynamic and static contact group. Background Technology

[0002] A switch machine is a crucial railway signaling infrastructure used to reliably change the position and direction of a turnout, lock the turnout switch rails, and indicate the turnout position. Classified by operating energy and transmission method, switch machines can be categorized as electric switch machines, electro-hydraulic switch machines, and electro-pneumatic switch machines. Electric switch machines typically use a 380-volt three-phase motor to drive the turnout switching operation. The turnout switching is controlled by the insertion and withdrawal of the moving contact group and the stationary contact group of the automatic switchgear in the switch machine. Specifically, the automatic switchgear is used to promptly and accurately reflect the position of the turnout switch rails and performs the functions of controlling the motor and indicating the turnout position.

[0003] Due to the high frequency of use, the moving and stationary contact groups of old-style automatic switches suffer from severe wear, oxidation, and arcing. As a result of the arcing, an arcing ring-shaped oxide layer is formed on the moving contact that is higher than the surface of the moving contact ring, causing the moving and stationary contacts to be unable to connect the circuit.

[0004] Currently, the dynamic and static contact groups used in the automatic switch machine opening and closing devices in China are single-layer contacts, and the static contacts are single-piece line contacts. The contacts of switch machines that are used frequently suffer from severe wear, oxidation, and arcing, often resulting in contact failure and inability to connect the circuit. The existing solution is to reduce the contact replacement cycle from 3 months to 1 month, thereby reducing the failure rate. Utility Model Content

[0005] In order to solve the problems of the prior art, this utility model provides an automatic opening and closing device dynamic and static contact group.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: an automatic opening and closing device moving and stationary contact group, including a moving contact group and stationary contact groups symmetrically arranged on both sides of the moving contact group.

[0007] The static contact assembly includes a static contact mounting base and a contact piece assembly. The contact piece assembly includes an inner static contact piece and an outer reinforcing support piece. The inner static contact piece includes an upper inner static contact piece and an lower inner static contact piece. The outer reinforcing support piece includes an upper outer reinforcing support piece and an lower outer reinforcing support piece. Both the inner static contact piece and the outer reinforcing support piece are integrally formed.

[0008] The front part of the outer upper group reinforcing support piece contacts the front part of the inner upper group static contact piece, the rear part of the outer upper group reinforcing support piece contacts the rear part of the inner upper group static contact piece, and there is a gap between the middle part of the outer upper group reinforcing support piece and the middle part of the inner upper group static contact piece; the front part of the outer lower group reinforcing support piece contacts the front part of the inner lower group static contact piece, the rear part of the outer lower group reinforcing support piece contacts the rear part of the inner lower group static contact piece, and there is a gap between the middle part of the outer lower group reinforcing support piece and the middle part of the inner lower group static contact piece.

[0009] Furthermore, the moving contact assembly includes a moving contact mounting base, a plurality of moving contact mounting columns fixed on the moving contact mounting base, and a moving contact ring rotatably connected to the moving contact mounting columns, wherein the mounting columns and the moving contact mounting base are integrally formed.

[0010] The number of contact plates on each of the stationary contact groups is the same as the number of moving contact rings.

[0011] Furthermore, the contact plate assembly is connected and fixed to the stationary contact mounting base by bolts.

[0012] Furthermore, the stationary contact mounting base is provided with multiple mounting holes one, and the moving contact mounting base is provided with multiple mounting holes two.

[0013] The advantages of this utility model compared with the prior art are as follows: The contact plate group on the stationary contact group of this utility model adopts two layers of contact plates, upper and lower. When the lower contact plate sparks and wears and ages at the moment of connection, the circuit is connected. At this time, when the moving contact ring is pressed into the upper contact plate, the upper contact plate will not form an arcing phenomenon. Both layers of contact plates work at the same time to connect the circuit. By designing it as a double-layer contact plate, compared with the existing single-layer stationary contact plate, safety is improved and the hidden dangers and risks of circuit breakage are reduced. Attached Figure Description

[0014] Figure 1 This is a top view structural diagram of the moving and stationary contact group of an automatic opening and closing device according to this utility model.

[0015] Figure 2 This is a three-dimensional structural diagram of the moving and stationary contact group of an automatic opening and closing device according to this utility model.

[0016] Figure 3 This is a schematic diagram of the contact plate group of the moving and stationary contact group of an automatic opening and closing device according to this utility model.

[0017] As shown in the figure:

[0018] 1. Moving contact assembly; 101. Moving contact mounting base; 102. Moving contact mounting post; 103. Moving contact ring; 104. Mounting hole two; 2. Static contact assembly; 201. Static contact mounting base; 202. Inner upper group static contact piece; 203. Inner lower group static contact piece; 204. Outer upper group reinforcing support piece; 205. Outer lower group reinforcing support piece; 206. Mounting hole one. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Example 1, in conjunction with Appendix Figure 1-3 An automatic opener / closer moving and stationary contact group includes a moving contact group 1 and a stationary contact group 2 symmetrically arranged on both sides of the moving contact group 1.

[0021] The stationary contact assembly 2 includes a stationary contact mounting base 201 and a contact piece assembly. The contact piece assembly includes an inner group of stationary contact pieces and an outer group of reinforcing support pieces. The inner group of stationary contact pieces includes an upper inner group of stationary contact pieces 202 and a lower inner group of stationary contact pieces 203. The outer group of reinforcing support pieces includes an upper outer group of reinforcing support pieces 204 and a lower outer group of reinforcing support pieces 205. Both the inner group of stationary contact pieces and the outer group of reinforcing support pieces are integrally formed.

[0022] The front part of the outer upper group reinforcing support piece 204 contacts the front part of the inner upper group static contact piece 202, the rear part of the outer upper group reinforcing support piece 204 contacts the rear part of the inner upper group static contact piece 202, and there is a gap between the middle part of the outer upper group reinforcing support piece 204 and the middle part of the inner upper group static contact piece 202; the front part of the outer lower group reinforcing support piece 205 contacts the front part of the inner lower group static contact piece 203, the rear part of the outer lower group reinforcing support piece 205 contacts the rear part of the inner lower group static contact piece 203, and there is a gap between the middle part of the outer lower group reinforcing support piece 205 and the middle part of the inner lower group static contact piece 203.

[0023] In this specific embodiment, the moving contact group 1 includes a moving contact mounting base 101, a plurality of moving contact mounting posts 102 fixed on the moving contact mounting base 101, and a moving contact ring 103 rotatably connected to the moving contact mounting posts 102. The mounting posts 102 and the moving contact mounting base 101 are integrally formed.

[0024] The number of contact plates on each of the stationary contact groups 2 is the same as the number of moving contact rings 103.

[0025] In this specific embodiment, the contact piece assembly is connected and fixed to the stationary contact mounting base 201 by bolts.

[0026] In this specific embodiment, the stationary contact mounting base 201 is provided with a plurality of mounting holes 206, and the moving contact mounting base 101 is provided with a plurality of mounting holes 104.

[0027] In specific implementation, the installation and usage methods of this utility model are the same as those of existing switch machines. That is, the moving and stationary contact group 2 of the automatic switch is fixedly installed in the switch machine through the mounting hole 206, the mounting hole 104 and the connecting bolts. In use, the control button on the switch machine controls the motor inside the switch machine to drive the main shaft to rotate. The action rod drives the turnout point rail to move, which drives the moving contact group 1 to rotate. This causes the moving contact ring 103 on the moving contact group 1 to move closer to one of the stationary contact groups 2 and insert into the contact piece group, thus realizing the circuit connection. By cooperating with different stationary contact groups 2, the conversion from the fixed position to the reverse position or vice versa can be realized.

[0028] During this process, the moving contact ring 103 on the moving contact group 1 moves closer to one of the stationary contact groups 2. First, the moving contact ring 103 contacts the inner lower group stationary contact piece 203. Sparking occurs at the moment of connection, which causes partial wear and aging of the moving contact ring 103. The inner lower group stationary contact piece 203 is then pushed open by the moving contact ring 103. Subsequently, the moving contact ring 103 contacts the inner upper group stationary contact piece 202. At this point, arcing no longer occurs. The circuit is connected by the simultaneous operation of the two layers of contact pieces, resulting in good reliability. It eliminates the need for frequent replacement of the moving and stationary contact groups of the automatic switch, solving the problem of severe wear, oxidation, and arcing of existing switch machine contacts, which often leads to contact failure and inability to connect the circuit.

[0029] In the description of the embodiments of this utility model, it should be noted that if terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," or "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, terms such as "first," "second," and "third" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0030] Furthermore, the use of terms such as "horizontal," "vertical," and "sag" does not imply that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0031] In the description of the embodiments of this utility model, "a plurality of" means at least two.

[0032] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. An automatic opening and closing device with moving and stationary contacts, characterized in that: It includes a moving contact group (1) and a stationary contact group (2) symmetrically located on both sides of the moving contact group (1); The stationary contact assembly (2) includes a stationary contact mounting base (201) and a contact piece assembly. The contact piece assembly includes an inner group of stationary contact pieces and an outer group of reinforcing support pieces. The inner group of stationary contact pieces includes an inner upper group of stationary contact pieces (202) and an inner lower group of stationary contact pieces (203). The outer group of reinforcing support pieces includes an outer upper group of reinforcing support pieces (204) and an outer lower group of reinforcing support pieces (205). The inner group of stationary contact pieces and the outer group of reinforcing support pieces are integrally formed. The front part of the outer upper group reinforcing support piece (204) contacts the front part of the inner upper group static contact piece (202), the rear part of the outer upper group reinforcing support piece (204) contacts the rear part of the inner upper group static contact piece (202), and there is a gap between the middle part of the outer upper group reinforcing support piece (204) and the middle part of the inner upper group static contact piece (202); the front part of the outer lower group reinforcing support piece (205) contacts the front part of the inner lower group static contact piece (203), the rear part of the outer lower group reinforcing support piece (205) contacts the rear part of the inner lower group static contact piece (203), and there is a gap between the middle part of the outer lower group reinforcing support piece (205) and the middle part of the inner lower group static contact piece (203).

2. The automatic opening and closing device moving and stationary contact assembly according to claim 1, characterized in that: The moving contact assembly (1) includes a moving contact mounting base (101), a plurality of moving contact mounting posts (102) fixed on the moving contact mounting base (101), and a moving contact ring (103) rotatably connected to the moving contact mounting posts (102). The mounting posts (102) and the moving contact mounting base (101) are integrally formed. The number of contact plates on each of the stationary contact groups (2) is the same as the number of moving contact rings (103).

3. The automatic opening and closing device moving and stationary contact assembly according to claim 1, characterized in that: The contact plate assembly is connected and fixed to the stationary contact mounting base (201) by bolts.

4. The automatic opening and closing device moving and stationary contact assembly according to claim 2, characterized in that: The stationary contact mounting base (201) is provided with a plurality of mounting holes 1 (206), and the moving contact mounting base (101) is provided with a plurality of mounting holes 2 (104).

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